Automatic feed for saw-setting mechanism.



No. 650,045. Patented May 22, I900.

S. HALTOM.

AUTOMATIC FEE D FOB SAW SETTING MECHANISM.

, (Application filed Aug. 18, 1899.) (No Model.) 7 2 Sheets-Sheet l.

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Patent ed May 22, 1900.-

No. 650,045. S. HALTOM.

AUTOMATIC FEED FOR SAW SETTING MECHANISM.

(Application filed Aug. 18, 1899.! I (No Model.) 2 Sheets-Sheet 2.

g STATES SAMUEL IIALTOM, OF HENDERSON,

TEXAS, ASSIGNOR or ONE-HALF TO ABRAHAM G. NADEL, OF SAME PLACE.

AUTOMATIC FEED FOR SAW-SETTINGMECHANISM.

SPECIFICATION forming part of L'etters Patent No. 650,045, dated May 22, 1900.

A Application filed August 18, 1899- Serial No. 727,670. (No modeli) To all 1071 0171, it may concern..-

Be it known that I, SAMUEL HALTOM, a citizen of the United States, residing at Henderson, in the county of Rusk, State of Texas, have invented certain new and useful Improvements in Automatic Feed for Saw-Setting Mechanism, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to an automatic feed for a saw setting device, and is particularly adapted to advance the saw into alinement with a setting-punch by areciprocatory movement of a part of the mechanism.

Theinvention has for one object toimprove and simplify the construction of feeding mechanism and embodies the use of an oscillatory and reciprocatory dog in connection with an oscillatory fixed dog. A further object of the invention is to provide suitable lockin g devices to hold the parts and the saw in their adjusted position. The invent-ion also has for an object to improve the structure of saw-setting mechanism and its operating-lever, whereby the same is adapted for cooperation with the feeding mechanism.

Other objects and advantages of the inven= tion will hereinafter appear in the following description, and the novel features thereof will be particularly pointed out in the appended claims.

In the drawings, Figure 1 represents an elevation of the device. Fig. 2 is a plan thereof. Fig. 3 is an elevation of the rear face of the device. Fig. 4 is a vertical section on the line 4 4 of Fig. 1. Fig. 5 is a detail elevation of the operating-latch for the setting-punch. Fig. 6 is a detail plan -of the guiding-plates, and Fig. 7 is a detail of the dog-carrying sleeve.

Like letters of reference indicate like parts throughout the several figures of the drawings. V y y The letter A represents the framework, which may be of any suitable configuration or construction adapted to support the parts carried thereby. Within a groove in this frame an anvil B is supported, having an operating-face B and adapted to be adjusted by means of a set-screw B journaled in a boxing A and secured in position by a looking wrench-nut B Operating in connection with this anvil and opposite thereto is a setting-punch 0, located in a suitable groove in the frame and normally held out of contact with the anvil B bymeans of a spring 0, located in a recess of the frame behind the punch and connected to said punch and frame, as shown by dotted lines in Fig. 5. For the purpose of opera-ting the punch and other parts of the device a suitable operating-lever D has been provided, which is pivoted to the frame, as at D, and provided upon its face next the setting-punch with a cam D for impartin g a preliminary movem cut to the punch. This movement advances the stud C to such a position that it will be engaged by the latch E, by which positive movement will be imparted to the punch. The latch E. is pivotally mounted at D upon the lever D and eccentric to the pivotal point D of said lever. The latch E is normally forced toward the stud O by means of a pressure-pin F, seated in a casing A carried by the frame and held under tension by means of a spring F. The free end of the latch is provided with a seat E, adapted to rest upon the stud C Vhen the punch is withdrawn from the anvil, the operation of the lever D causes a face of the latch E to ride upon a pin 0 as shown in Fig. 1, thus tripping or raising the latch and the stud C to permit the spring to retract the punch. By reference to Fig. 1 it will be seen that the movement of the'lever I) toward the right and into the position shown by dotted lines will cause the latch E to connect with the stud O and thus positively drive the punch in the return movement toward the left until the latch is raised from the stud by the pin 0 at which time the punch returns to the position shown in Fig. 1. The structure of anvil, setting-punch, and operating-latch is illustrated in-this application, but is claimed in a companion pending application,which shows substantially the form of parts hereinbefore described.

The particular automatic feeding mechanism set forth in this application comprises the dog G, mounted to reciprocate and .to oscillate, and a fixed dog H, adapted only for oscillation across and between the teeth of a frame and engages said sleeve.-

collar G may be attached behind the setgii saw. The dog G is "providedwith a hooked end G to engage the saw-teeth and is fixed upon a shaft G which shaft at its opposite end may be threaded, as at G for the purpose of securing and adjusting thereon setcollars G.

set-screws G The dog H is secured to one end of a sleeve H, which is mounted to oscillate in the frame A above the teeth-setting device and suitably slotted, as at H to permit the reciprocation therein of a pin G, carriedby the shaft G with a locking-notch G adapted to be en'- gaged by a gravity or 's'pringcatch' I, secured to the frame A and guided by means of an angle-arm I,-foperating behind a flanged pin 1 For the purpose of retaining the sleeve H against endwise or longitudinal movement a holding-screw H is passed through the A spacinglever D by means of a link J and the oppo- Q 'site'end J 4 bearing against the set-collar G carried by the shaft G of the reciprocating dog G. This mechanism will in the move- 1 inent'of the-clever toward the right reciproeate th'e dog G without disturbing the position-of the dog H. This dog is oscillated, however, by means of a guide leveror finger K secured to the pivotal end of the dog H 'andprovided with a slot K and shank K in which slot a-pin D carried by the lever D,- passe's, and thereby produces a downward movement-of the finger and an oscillation of the dog H.- In the movement of the lever toward the right the upward swing of this finger is limited by means of a pin A carried upon the frame,engaging a recess K upon the finger The shank K rests upon the pin D in any position of the lever D, and thus prevents the: parts from being displaced. When the dog H and its sleeve H are oscillated by the lever K, secured thereto, the pin G from the shaft G of the dog G is likewise oscillated,- thus causing the dogs to move in unison.

, For the purpose of raising and releasing the hoIding-catclrI one end of the sleeve H has been provided with shoulders H, which rest beneath the catch 1, and in their oscillation lift the catch after the dog H has obtained a hold upon one of the saw-teeth.

, The operation of the setting-punch will'be clearly understood from the foregoing description, and the movement of the lever D toward the right lifts the finger K, thus oscillating the holding-dog II out of contact with the saw- .This threading may, however, be'. omitted and the collars secured by means of" This shaft is also provided.

permitting the spring behind the dog G to return said dog to its initial position, thus alter- "na'tly' engaging each dog with the teeth of a saw. I

It will be obvious that the device may be supported in any suitable manner and,'if desired,by means of ahandleL, suitably'secured to the frame A, While agage roller M may be i supportedabove the setting-punch to limit the extent to which a saw may be inserted,

and this insertion may also be guided by means ofobliquely-disposed guide-plates N,

carried upon adjustable plates N, which are secured in position by means of screws N.

I It will also be obvious that changes may be made in the details of construction and configuration and that the specific form of feeding mechanism herein described may be used in connection with other forms of setting devices than that herein illustrated.

Having described my invention, what I claim as new, and desire'to secure by Letters Patent, is-

1. In a saw-setting machine, the combination of devices for setting the teeth, of a holding-dog mounted for oscillation, an independ ently-movable feed-dog mounted for oscillation and reciprocation, and means for actuatring said dogs; substantially as specified.

2. In a saw-setting machine, the comibin'a tion of devices for setting the teeth of a saw, a holding-dog mounted for oscillation, an independently-movable feed-dog mounted for oscillation and reciprocation, and an anglelever engaging the shaft of said reciprocatory "dog for actuating the same; substantially as specified.

3. In a saw-setting machine, the combination of devices for setting the teeth of a saw,

a holding-dog mounted for oscillation, an independently-movable feed-dog mounted for oscillation and reciprocation, an angle'dever engaging the shaft of said reciprocatory dog, and means connecting said vdogs to produce a simultaneousoscillation thereof; substantially as specified,

l 4;. A feeding devieefor a saw-setting mechanism comprising a dog mounted for oscillation, an independently-movable dog mounted for oscillation and reciprocation, an anglelever engaging the shaft of said reeiprocatory dog, meansconnecting said dogs to produce a simultaneous oscillation thereof, and a catch for retaining said shaft in one position; sub

stantially as specified.-

5. A feeding device for a saw-setting mechanism comprising a dog mounted for oscillation, an independently-movable dog mounted for oscillation and reciprocation, an anglelever engaging the shaft of said reciprocatory dog, means connecting said dogs to produce a simultaneous oscillation thereof, a catch for retaining said shaft in any position, and means carried by the oscillating parts for releasing said catch; substantially as specified.

6. A feeding device for a saw-setting mechanism comprising a dog mounted for oscillation an independently-movable dog mounted for oscillation and reciprocation, an angle lever engaging the shaft of said reciprocatory ,dog, means connecting said dogs to produce a simultaneous oscillation thereof, a catch for retaining said shaft in one position, means carried by the oscillating parts for releasing said catch, a slotted guide-finger extending from the oscillatory dog and engaging a pin upon an operating-lever; substantially as specified.

'7. In an automatic feed for saw-setting mechanism, the combination With an anvil, a setting-punch provided With a stud, an operating-lever, a latch pivoted to said operating-lever and adapted to engage said stud, means beneath said latch to raise the same, a feeding mechanism operatively connected with said lever, an oscillatory dog actuated by said lever, and a re'ciprocatory dog carried by said feeding mechanism; substantially as specified.

8. A feeding device for saw-setting mechanism comprising an oscillatory dog mounted for reciprocation, an oscillatory dog carried by a slotted sleeve surrounding the shaft of the firstmentioned dog and held against oscillation, a pin extending through said slot, a set-collar carried on said shaft, an anglelever pivoted to the frame and bearin g against said set-collar, and means for operating said lever; substantially as specified.

9. .A feed device for saw-setting mechanism comprising an oscillatory dog mounted for reciprocation, an oscillatory dog carried by a slotted sleeve surrounding the shaft of the first-mentioned dog and held against oscillation, a pin extending through said slot, a set-collar carried on said shaft, an anglelever pivoted to the frame and bearing against said set-collar, means for operating said lever, a gravity-latch adapted to engage a socket in said shaft, a shoulder carried by said sleeve and adapted to engage and elevate said catch in the oscillation of the sleeve,

and means for oscillating said dogs preliminarily to the reciprocation of one thereof; substantially as specified.

10. A feed device for saw-setting mechanism comprising an oscillatory dog mounted for reciprocation, an oscillatory dog carried by a slotted sleeve surrounding the shaft of the first-mentioned dog and held against oscillation, a pin extending through said slot, a set-collar carried on said shaft, an anglelever pivoted to the frame and bearing against said set-collar, means for operating said lever, a shoulder carried by said sleeve andadapted to engage and elevate said catch in the oscillation of the sleeve, means for oscillating said dogs preliminarily to the reciprocation of one thereof, a returning-spring for said re ciprocatory dogs, and a device to retain said sleeve against reciprocation; substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

SAMUEL HALTOM.

Witnesses:

R. F. BROWN, JoHN R. ARNOLD. 

